need some opinions here. I just finished installing new front calipers and bracket lines on the C10 last weekend, but I haven't blead the brake system yet. I'm thinking about converting the rear drums to discs. the process looks pretty straight forward, but there are so many kits out there at some many different price points that I cant decide on one. Also, I'm assuming I need a new proportioning valve for the pressure difference between drums and discs? and If I do need one, should I mount it back down where the factory one is on the core support, or relocate it next to the master cylinder?

10.3:1 6.0, 225 PRC heads, cam .695/.613 - 231/243, twin BW S366, VSRacing gen 3 44 mm wastegates & 50mm BOV, Bosch 210’s, TBSS intake, Holley smart coils, Holley Dominator, O2’s 18-22” after turbos, 3.5” dual exhaust stops about 2’ before rear differential, will be flex fuel but for initial start/tune is on ethanol free 91, BR7EF plugs, Firecore wires, Motion 92mm TB, fuel pressure at 55 psi, 10 an splits to 8an to feed each rail then out each rail into the reg & return is 6an, vacuum ran from intake to dist block feeding map & BOV, fpr has own vac line from intake, vac from cold pipe to wastegates, 2 in 1 out treadstone innercooler, on board air to wastegates, Holley dual boost controllers. I can find zero vacuum leaks, fuel leaks, injectors were brand new and have been tested twice, played musical coils with 4 spare smart coils, compression check was 200 psi - 208 psi & leak down was 4-5% with 1 cylinder just under 7%. First start both banks are fairly even & slightly rich then it settles for a few seconds and it’s all stoich, then the odd bank starts to have lean spikes, going from stoich & briefly flashing 15:1-16:1 to stoich & stays like that, under 0-9% throttle it doesn’t respond much & even stumbles a bit, at 10-11ish% throttle it’ll run somewhat smooth & rev but still has the mild lean spikes, above that it surges and goes 19-11 lean-rich on the odd bank, and much smaller movement from the even bank. Closed and open loop. I do have a remote tuner helping out when he’s available & hopefully will be remoting in this week after a month of me tending to other issues. I have baptized this engine bay in brake clean looking for a leak & nothing, no exhaust leaks to be found. I have a smoke machine being delivered this week. I’m on my 3rd set of plugs, not that the other 2 sets are junk, just running out of ideas. All plugs show combustion is happening, nothing looks scary although mostly idle time doesn’t help read a plug. I had zero luck finding a way to plug the TBSS map port so it’s threaded with a bolt and oring screwed in.

What options are out there both GM and aftermarket for a L92 rectangle port 6.2l?

So glad I found this group . Here is my build . It’s a little farther along than the picture. 88 foxbody coupe . 2006 LS2 out of a corvette with a 4l80e derale atomic cooler full spool 8.8 4:10 gears . 6 point cage team Z tube front full QA1 kmember and double acting coil over suspension (I know QA1 might not have been the best choice but it’s what I have)running the stock corvette ECU and a 4l60 ECU reflashed for the 80e . I just purchased a 2019 LT4 blower out of another corvette and will ad it and a cam next season as I collect parts. Any recommendations are appreciated and welcome. For adding the blower I see there are a lot of kit’s available as to the cathedral-rec port adapter and the ls2 throttle body- LT4 blower. My question is are there any that stand out more than others in your opinion? Also is a lid spacer worth the money to HP gain ratio? Lastly are there any kits for the coolant pump, resevior intercooler(can I and should I run a derale atomic cooler for the supercharger intercooler). What should I look at or am I better off piecing it all out . I am sure I am missing stuff and probably some info but appreciate any advice or help . Cheers. My goal of the car will be to mostly street drive and some drag and drive and 1/8 grudge 🇨🇦 @Ict Billet can you recommend the most complete kit you have for this combination.

Speartech harness and ECM location 67 Nova Hello all, I am looking for some guidance for installation for my ECM in relation to my wiring and would like maybe a guide how to approach the easiest way to complete this task. I have a wiring setup using the route 22 from American auto wire within the glovebox for easy access. I built a frame to hold the fuse box out of half inch square tubing and mounted it under the dash. This version 1.0 with the small block Chevy. I would like to build a similar frame to put next to or parallel to the fuse box for the ECM for easy access for LS1 version 2.0(drive by cable speartech 98-02) I will plum the spear tech wiring for the ECM through the hole of the firewall where the heater fan goes with the grommet provided. Plans are to use a Mojave electric heater if needed for defroster and AC once I get to this stage. The key here is to get the motor started and broken in and a tune to run the car during the break in process. Any ideas or pitfalls to avoid when I am ready to take this on would be appreciated. Thanks Joe