just had my engine rebuilt, runs great since I have installed the engine in the car when I accelerate thru first and make the shift into second when the rpm's drop the car like surges and wont accelerate. I have to let off the gas and then get back into the gas it slower.
What would cause it to do that?

Ya know, ya'd think a guy smart enough to rebuild an engine could think of a better thread title than "help."

Sounds to me like it's not getting fuel

Plugged pickup screen in tank

bad hose at tank to line, junk in line

bad hose at line--to pump

bad pump

plugged fuel filter.

So, I dunno, it's up to you

Buy a vacuum/ pressure gauge, cheap at any parts store, even a "fake" parts store

Hook to INLET of pump and idle engine long enough to read, see what the gauge reads. Should be substantial vacuum.

Replace both hoses in fuel line, as well as filter

How about carb float level, have you checked that? You been into the carb? Has it been sitting around?

Hey six, he said he HAD it rebuilt, man, sounds like it's a fuel issue to me too.

Thank you both for your input.
I am going to cheeck that all out.

"Ya know, ya'd think a guy smart enough to rebuild an engine could think of a better thread title than "help."


And you would also think a guy with all the answers could read....He said he just had it rebuilt not that he rebuilt it

Id put money on the pump. But change out the hoses and filter first. Also check float level.

Maybe you should try to diagnose the problem first, is fuel pressure dropping off?

Fuel pump is brand new. I did not change out the fuel lines to the pump, or the tank. The tank has a rather large dent (equivalent to maybe 3 or 4 gallons), And I just noticed that it is leaking also. Not sure if that would add to the problem or not. Carb is brand new as well.

rig a small gas can in the eng compartment hooked to the pump inlet w some 5/16"neoprene fuel line & take her out again. This'll tell you if the prob is in the rear line/tank/pickup or if it's forward from the there including the pump(including the eccentric,(pushrod if BB) and/or the carb(needle/seat/float level/filter).

Could be the dented area is at the pick up tube which is now bent or closed off causing a lack of fuel flow.