Edelbrock tuning issues
Hopefully you have the 40 year old heat riser flap removed from the passenger exhaust manifold.
When that engine goes cold, that flap rolls shut. If it is rusted and stuck shut from sitting, that will kill any power that you are dreaming of making.
Dual Exhaust?
Hold a wrag over each tailpipe at the rear of the car after it has warmed up good, to see if there is a pressure difference between the 2 pipes.
Stuck flaps or animals getting up into the mufflers and building nests?
Needs to breath properly to make power.
☆☆☆☆☆
Hopefully you have the 40 year old heat riser flap removed from the passenger exhaust manifold.
When that engine goes cold, that flap rolls shut. If it is rusted and stuck shut from sitting, that will kill any power that you are dreaming of making.
Dual Exhaust?
Hold a wrag over each tailpipe at the rear of the car after it has warmed up good, to see if there is a pressure difference between the 2 pipes.
Stuck flaps or animals getting up into the mufflers and building nests?
Needs to breath properly to make power.
☆☆☆☆☆