I recently decided to put together a sbc I had.

PILONA42

MEMBER
1984 CHEVROLET MONTE CARLO

I recently decided to put together a sbc I had laying around. I used a lightly used crate short block and put 2.02 heads on it. Cant get it to run and I am getting the loudest backfires I have ever heard! Ive checked my ignition timing and firing order on my hei distributor numerous times and they are correct. I know im not 180 off because I found tdc with the valve cover off and verified I was on the compression stroke with my finger in the plug hole. Ive checked compression and they are at 150 in all cylinders. When I take the carb off I noticed there was a lot of standing fuel in the intake. Swaped my Holley for a Edelbrock off a running vehicle and I still have the same problem. I am going crazy over here Can someone please help me?

2 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

What kind of cam? What did you set initial timing at? Valve clearance?

Roy

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Friday, February 8th, 2013 AT 11:53 AM

PILONA42

MEMBER
13 POSTS

Thanks for responding Roy. It has the stock cam from the crate motor. It has hydraulic lifters and they are adjusted to 1/2 turn past 0 lash. As far as my timing setting I dont have a timing tab on this rig but I am close enough that she should run. My neighbors must think Im shooting a cannon over here.