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bryant99 · 02-11-2012, 05:24 PM

I put a set of GT40P heads on my mustang last summer from the stock heads.The P heads are sweet and do flow better.I was always fowling plugs all the time and now the plugs are a pretty carmel color.My engine is not stock its been built to run and runs so much better.Any GT40 heads are better than stock heads on the mustangs.Mine came off of a 97 or 98 ford explorer.They are just a all around better head.

02-11-2012, 05:24 PM	#24
bryant99 Registered Member Join Date: Nov 2002 Location: Danville, IL Posts: 2	Re: gt40 vs gt40p I put a set of GT40P heads on my mustang last summer from the stock heads.The P heads are sweet and do flow better.I was always fowling plugs all the time and now the plugs are a pretty carmel color.My engine is not stock its been built to run and runs so much better.Any GT40 heads are better than stock heads on the mustangs.Mine came off of a 97 or 98 ford explorer.They are just a all around better head.