the Gurus feel the intake side isn't as much the problem, as the "beloved Dog Leg exhaust ports" resticting the exhaust flow out thereby restricting scavenging and intake flow during valve overlap.
The "guru" telling you about the crappy AMC exhaust port is a Honda mechanic?
"restricting scavenging and intake flow during valve overlap"????
That doesn't make a bunch of sense since you are using a blower & pushing the mix out under (low) pressure. I do believe the lower than to be expected 693 HP@5100 & 704 ft.lbs@4000 numbers could come up quite a bit with more boost &, the way I understand it, you are committed to 89 octane? Spend that kind of money & not at least mix 50-50 with 104??? I would at least look at water injection for when the knock detector senses ping.
I was just reading your list of engine mods & you say "ports equally ported to same size (what about flow?) using the Bridgeport", that doesn't quite sound like a top-notch, AMC experienced port job, & where are the flow numbers?
Most bang for the buck? How about a 304 turbo at 797HP/930ft.lbs???
Sorry, not intending to inflict insults.
NOTE: Indy SR-1 heads are a DIRECT replacement for doglegs, no spl intake required.
