busheymotorsports

So I just picked up a 88 gt that has edelbrock upper and lower intakes, e303 cam, bbk headers, flowmasters etc....my question is that it has a really smooth idle and a friend of mines car with the same parts has a nice aggressive idle. The only difference is that his has a MAF conversion and mine is still the original speed density set up. Will that make a difference in the idle? I was told by a "Ford Guy" that I really need to get the MAF conversion to wake up my car....any thoughts? thanks

smacked1

same heads? what about rockers

busheymotorsports

yes same heads, stock

mjr46

maybe in all reality you don't have a e-303 in it??

busheymotorsports

I guess that is possible...I have the receipt from the shop that put it in and they are a very respected race shop in the area

mjr46

^^^^well then it most likely is in there, did they change the springs on the heads to match the cam??

Projectquick

I can only offer my personal experiance, I can hear the e303 in my car.

busheymotorsports

hmmm...that I don't know. Is spending the money on the MAF conversion worth it? Will I be able to tell any difference?

mjr46

since load is determined in part by the Map sensor a healthy vaccum signal is important for SD cars and when swapping to more aggressive cams that can lower vaccum signals, the SD system can improperly calculate fuel deliver based on a snafu vaccum signal that in part is a result of the cam choice, an E 303 should deliver a decent vac signal but may be slightly lower than what a stock cam does, basically to sum it up when swapping cams in an SD car if you go more aggressive a maf conversion is recommended so fuel mapping will be proper/adequate

busheymotorsports

so, the big question is...what do I need to do to get the more aggressive idle like his cam? Is it a timing issue? What should I have the timing set at? I appeciate all of the help...I am new to this Mustang thing