changed intake manifold now all kind of problems.
I am new to fitech equipment and changed intake for a customer and now it backfires, and overheats. I did some datalogging but i need someone to look at it and advise me. it is basically a stock 350sbc with 30003 system. I have to put an ls system together soon and really need to know about these systems
Ok, I'll get the ball rolling:
Did you have the fitech on there with the previous manifold?
Do you have a dedicated ground wire connected to the fitech body from your engine ground?
Is your timing setup the same as before?
backfiring small block on a intake change sounds like a timing issue,, was the fitech running the timing or not verify no crossed plug wires or a cracked cap, since the distributor was taken out did you mark the body and firewall as to its orientation and mark the body with the rotor point location, was it a dual plane or single, backfiring definitely sound ignition related bad timing will cause allot of heat also. just my 2 cents good luck
Probably need to start from scratch here. Taylorteamracing is on the right track though.
Post your datalog. You leave a link through Dropbox or Cloud.
Brandt, didn't mean to leave you out....