[vinniekq2]

that small cam and heads should put you in the 500 hp range. Dont use 660 center squirters on the street.Do you have any actual flow numbers for the heads? I would use a 750 double pumper.The car could run 11s.If you use 2 600 carbs and progressive linkage It should get reasonable mileage compared to the holley 750X and still be close to the same speed in the 1/4 if you ever explore that?It should at least run low 12s

[GUS00]

Yeah ' I was running the 660's on the street -had it running good,made more than the eddies ,but one of the throttle shafts wanted to leak,so I went to the endurashine-looks better with the open car.I've been running both carbs at once on the 454 & it went good .Better on gas than the 660's. Might try the strip sometime,too easy to get reported street racing.Hope you're right about the HP thanks..................Gus No, I don't have any flow numbers,they're just E-street heads the way they came

[vinniekq2]

this is what they advertise
with flat gasket seat.


Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
#5073, #5089
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 74 143 207 250 284 309 -
Exhaust 71 128 153 178 200 218 -
So,they have the potential for over 500 hp if the numbers are correct.I believe 500 ish to be close. I guess you use the 2 carbs for show?

[GUS00]

Yeah, THe Hi-ram & endurashine carbs with K&N velocity stacks.I know there's better ways to make power ,But it's a fun ride anyway