Originally Posted by
grizz1
The 053 is a mid range pipe, and back before the GO pipes came out was ideally suited to the 7 Port. I used to run one on my old Gen 4 7 Port and it fair screamed along.
Could be you are a little rich, or a little lean on the top needle, hence the lack of top end power.
Go the safe road by richening it a couple of hours first. If it's worse then go back to where you were and then lean it a couple of hours. You will know straight away if your heading in the right direction.
If you need to adjust the top end either way, make sure you re set the bottom end to compensate.
I doubt it will be clutch related if it's strong on the bottom to mid.
i use to start tuning my engine on the rich side,adjusted it little by little,the engine SOMETIMES accelerates great from bottom to mid and SOMETIMES it misfires on mid SOMETIMES it runs clear on the straight so i was saying it doesnt give me a very consistent response,so i actually took off the carb on my 7port and installed on my nova engine with new clutch shoes on it, the nova runs great without adjusting the go carb on it,runs very clean on the straight,but when i took it back on the go 7port with my semi worn out shoe it really dont run very clearly on the staright even on road.the only thing i want to know if worn out clutch shoes can give you a rich bog?