[EricL]

i have a stock fuel pump on my 455, do you think it's enough up to 4500rpm?

if not how much fuel does it need?

______________________________
1980 Special Edition Trans Am

1975 2 bolt 455, 6X-8 heads, summit 2802 cam, stock intake, holley 600cfm vacume secondaries and modified adapter(alum intake and bigger carb some time).
TH350 trans and convertor out of a 78 TA, stock 10 bolt with 2.41 gears(3.23s going in soon)

pypes 2.5" exhaust on its way

[EricL]

i have a stock fuel pump on my 455, do you think it's enough up to 4500rpm?

if not how much fuel does it need?

______________________________
1980 Special Edition Trans Am

1975 2 bolt 455, 6X-8 heads, summit 2802 cam, stock intake, holley 600cfm vacume secondaries and modified adapter(alum intake and bigger carb some time).
TH350 trans and convertor out of a 78 TA, stock 10 bolt with 2.41 gears(3.23s going in soon)

pypes 2.5" exhaust on its way

[judge_jury_executioner_69]

if you need more go go juice ( sorry had to use the term ) summit has carter mechanical fuel pumps that flow 120 gph for around $60

Greatest Of All Time

[krisr]

My stock fuel pump used to get VERY warm from engine heat and I think it was causing me grief by heating the fuel on the way up to the carb, also I would loose pressure on a long trip, doing 60mph up the highway I would see the fuel pressure drop to 1-2psi so if I would give it a hit or try accelerating up a hill it would just bog down and want to die. I'm not sure if this is normal with a pontiac mechanical pump or a problem at that..... or I just had a clapped out pump, but thought it was worth bringing up.

Since the move over to electric, no more fuel issues. Constant 6PSI, just the noise to battle with.