boss exhaust.wmv

1970 BOSS 302 stroked to 347 hooker super comps, 2 1/2 Dr gas x-pipe, spintech prostreet mufflers

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1970 Plymouth Duster 340
Just a short clip of my duster running after sitting for over 29 years. Engine specs: 340 .030 Over 11.5:1 Compression Compcams 310/310 .585 lift solid cam Ported X-Heads Mopar M1 intake with Holley 850DP Hooker Supercomp headers 3.91 gears 4spd Spintech Pro-Street mufflers

1970 Mustang BOSS 302 On the Dyno
This 1970 BOSS 302 came out of a barn recently and made 257 RWHP. The AF ratio was way off as can be seen by all the black smoke. The 257 HP number was made after some tuning. I think it made something like 230 HP in the video. A 2013 BOSS 302 was Dynoed at 380 RWHP and 347 TQ the same day.

460 SpinTech Mufflers
Here's the Ford 460 for the infamous "Tonco". Running dual Exhaust through SpinTech 3" mufflers.

spintech mufflers on 1978 chevy 4X4
chevy truck 1978 4X4 built 350ci with spintech super pro street mufflers This is the most AGGRESSIVE muffler they make 3.00in collector to 2.50 in Exhaust to 3.00in muffler.