Longtubes vs. Shorties

1BAD89 · 06-04-2001, 06:20 PM

Ok I have equal length shortiesnow and off-road h-pipe. My new combo will either be 306 w/Nos or a 347. Would Bassani or BBK longtubes and a off-road X-pipe show much HP gains?

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3:55's,BBK Off-Road H-pipe,BBK jet-hot coated equal length shorty headers,BBK 70mm Throttle Body,BBK adjustable clutch quadrant,C & L 76mm Mass air meter,Cobra R's 17x9 w/ 245's,Trick Flow Intake,Flowmaster Force II exhaust system, Super Duty T5,Centerforce II Clutch,Heavy Duty Radiator,9mm Ford racing plug wires,Accel cap and Rotor

www.geocities.com/i8urvpr/JM.html?987369348700

NO SLO PK · 06-04-2001, 07:24 PM

The long tube headers will make good power with a 347 or NOS'ed 306. I'm not certain, but maybe 15-20 hp gain with those combinations over the shorties.

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Russ L
'91 LX
Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.

302man · 06-04-2001, 08:15 PM

Go with the longs with either engine. They will add more torque. Thats what you need to get you going anyway.

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302,vortech s trim @18-20lbs showing,edelbrock performer heads-o ringed,gt 40 upper&lower, mac 1 5/8"long tubes, sub frame connectors,50/50 rear, 70/30 front, manual rack,3:55 gears, c4 , best time 10.13@135mph

06-04-2001, 06:20 PM	#1
1BAD89 Tubbed and Juiced Join Date: Mar 2001 Location: Tulsa, Oklahoma Posts: 1,861	Longtubes vs. Shorties Ok I have equal length shortiesnow and off-road h-pipe. My new combo will either be 306 w/Nos or a 347. Would Bassani or BBK longtubes and a off-road X-pipe show much HP gains? ------------------ 3:55's,BBK Off-Road H-pipe,BBK jet-hot coated equal length shorty headers,BBK 70mm Throttle Body,BBK adjustable clutch quadrant,C & L 76mm Mass air meter,Cobra R's 17x9 w/ 245's,Trick Flow Intake,Flowmaster Force II exhaust system, Super Duty T5,Centerforce II Clutch,Heavy Duty Radiator,9mm Ford racing plug wires,Accel cap and Rotor www.geocities.com/i8urvpr/JM.html?987369348700

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06-04-2001, 07:24 PM	#2
NO SLO PK Registered Member Join Date: Mar 1999 Location: Arcadia, CA, USA Posts: 731	The long tube headers will make good power with a 347 or NOS'ed 306. I'm not certain, but maybe 15-20 hp gain with those combinations over the shorties. ------------------ Russ L '91 LX Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.

06-04-2001, 08:15 PM	#3
302man Registered Member Join Date: Jul 1999 Location: INDIANAPOLIS Posts: 404	Go with the longs with either engine. They will add more torque. Thats what you need to get you going anyway. ------------------ 302,vortech s trim @18-20lbs showing,edelbrock performer heads-o ringed,gt 40 upper&lower, mac 1 5/8"long tubes, sub frame connectors,50/50 rear, 70/30 front, manual rack,3:55 gears, c4 , best time 10.13@135mph