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I have a 357 cu in engine that I can't get to idle, or stay running.
It is a gm 350 block bored 40 over
Stock replacement pistons (8.7 to 1 compression)
Stock Crank
Patriot Aluminum 215 cc/64 cc 2.02/1.60 new push rods
.500 max lift valve springs
.420/.443 lift 270/280 duration hydraulic flat tappet cam (new cam and lifters)
Scorpion 1.5 roller rockers
Edelbrock victor jr intake
Holley 750 4 barrel carb
MSD ignition
Good fuel pump
The engine will fire. It will run as long as you are pumping gas to it, as soon as you quit giving it gas, it burns what is left in the carb and shuts off. We thought the cam may have been too big so went to the smaller cam that is listed above, that wasn't it. Thought it may be the carb, switched those with a known good carb, that wasn't it. Any ideas??? We have the 112 octane gas still in the car from our big engine (it blew, we had this one in the garage, we were going to get some seat time with it) could that be causing the problem?? Anything to try would be a great help!!
It is a gm 350 block bored 40 over
Stock replacement pistons (8.7 to 1 compression)
Stock Crank
Patriot Aluminum 215 cc/64 cc 2.02/1.60 new push rods
.500 max lift valve springs
.420/.443 lift 270/280 duration hydraulic flat tappet cam (new cam and lifters)
Scorpion 1.5 roller rockers
Edelbrock victor jr intake
Holley 750 4 barrel carb
MSD ignition
Good fuel pump
The engine will fire. It will run as long as you are pumping gas to it, as soon as you quit giving it gas, it burns what is left in the carb and shuts off. We thought the cam may have been too big so went to the smaller cam that is listed above, that wasn't it. Thought it may be the carb, switched those with a known good carb, that wasn't it. Any ideas??? We have the 112 octane gas still in the car from our big engine (it blew, we had this one in the garage, we were going to get some seat time with it) could that be causing the problem?? Anything to try would be a great help!!
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