markmark1121980

I am not a mechanic. I had a 347 stroker built and trickflow heads, intake, cam kit put in it. It runs like it is getting to much gas and will not run right. I have had it to several places and no one can figure it out. I unplugged the mass air sensor and it ran alot better but still like crap.

What size of injectors should I be running? They have bigger than stock but I dont know what they are.

Size of mass air?

Anything that would help would be great Thank you



I am from southwest Missouri if anyone knows of a shop around here

Big_Steve

Have you had a Chip burnt with a custom tune for that engine?

ponyboy88

and is your MAF calibrated for those injectors?

NotchAbove

List of things to check:

1) Position of distributor, you could be running it with the timing retarded
2) Find out the color of the injectors and that will help to determine what # they are
3) After you do #2, ensure your MAF is correct for those injectors

That is where I would start. 2 & 3 are a fast thing to check, so you may wish to look at that first and rule out problems there.

markmark1121980

I have not put a chip in it

It has 30 lb injectors and the MAF is for 30lb

timing is good

mjr46

no chip should be needed..there are plenty of guys on here running 347 and h/c/i 302's without a chip and they run good......a chip is only to maximize peformance and fine tune drivibility glitches..it is NOT for curing major engine performance problems as you seem to have, First run A koer test and see if the ecm detects any probs with the efi system