I recommend just port matching your intake and exhaust at the flanges to make a smooth transition as well as polishing up that exhaust port real nice. I've never run a proma with a 15, but I ran one with a 15 sha and the engine with that pipe performs much better under load. I'd suggest gearing at least around 16-45 or maybe even throw a 17 up front. Or if you live somewhere flat throw a 40 out back. Gearing will be your best bet for making the most out of that pipe.
Re: stock puch cylinder porting gains
|Mr. Duncan||01/19/10 12:28AM|
|Nash .||01/19/10 12:50AM|
|[[ Linda ]]||01/19/10 01:16AM|
|Ƽɧ▲ɴƹ β||01/19/10 01:30AM|
|Josh Schutz||01/19/10 04:02AM|
|smell my finger||01/19/10 04:43AM|
|Ƽɧ▲ɴƹ β||01/19/10 08:47AM|
|Mo Peds||01/19/10 11:06AM|
|Mo Peds||01/19/10 11:04AM|
|Flagrant -||01/19/10 03:46PM|
|Josh Schutz||01/20/10 02:43AM|
|Charlie BUZZARD||09/29/10 07:29PM|
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