I've gone 11.46@117+ on unported GT-40P heads with an Edelbrock Performer RPM intake system, .500" lift cam and shorty headers. The RPM has a small port cross-section that matches the P's nicely to keep the intake port velocity up.
I've been trying to sell my RPM intake system (only 8 months old) so if you're interested, email me at
jchambers@kellnet.com.
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Jeff Chambers
1990 Mustang GT 10.032 Seconds / 137.5 MPH
14-time Street Warrior World Record Setter
CRT Performance
2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH
2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2
"There's nothing boring about a small block automatic shifting gears at 9400 rpm!"