Dude I'm confused here...you say the car was already HCI with a shorty exhaust? So are those gains from switching TO longtubes or are they from switching TO Shorties?
I find it hard to believe that everyone in the high performance industry uses long tubes...i wonder why they would do that if the cheaper and easier to instal shorties made more power...substantially more power?
I wonder how that would all factor in against my 1 3/4 Bassani shorties. What I mean is... there's a marked improvement with these over the 1 5/8 on combination that make use of the extra room. I wonder how that improvement would stack against that of a longtube on the same combo.
It would be nice to see a dyno compairson (real world not some dam magazine test)..
But the only bad thing is not every combo is the same,even the same parts on a different (shortblock) engine will run different.
5spd gt -no problem on the posts.I can tell you i was more shocked than anyone else.I knew it picked up power but figured it was only 10~15rwhp at the MOST...
car has not been to the track but is quick enough to beat a friends 2003 audi rs6 on the highway..
go with afr 185 cc heads,these are incredible, i have a buddy that bought 'em and he says they were the best out therefor a mild to strong street set up.Also they're great for forced induction.
there is no BEST head for say a street thing. every car is different. its all up to what the builder wants to engine to do and how its going to act and what sort of driving its going to do.
i'd take a well built, mild iron head combo that runs good over an engine that has just BIG HUGE VALVE ALUM HEADS that flow 344546 cfm, and nothing else to support it.
too many times have there been people spending all their money on an expensive set of cyl heads thinking thats where the powers at and buy cheap and mis matched parts to go with it.
what they get is a car with POOR drivability, doggy low end and a mediocre powerband. the heads can flow but once the rpms just get to where the heads really start chugging the rest of the mismatched parts are throwing in the towel and are done making power.
as for the original post. the E-cam, gt-40 or equivalent intake and some eddy performer heads. would be a nice running street combo if you dont have the cash for the alum heads invest in iron, a nicely ported set of gt40s flow similar to edelbrock alum heads.
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