Chevrolet Big Block Adv. Duration: 296/302Duration @ .050": 243/249Lift: .640/.640Lobe Separation: 110 LCIncluded Lifters: 91167 Hyd. Roller3000-6500. Rough idle, Street/Strip, great upper mid range power. 10.0:1+ CR, 3000+ stall.
Chevrolet Big Block Adv. Duration: 296/302Duration @ .050": 243/249Lift: .640/.640Lobe Separation: 112 LCIncluded Lifters: 91161 Hyd. Roller3000-6500. Lopey idle, broad mid-range power. 10.0:1 CR, 3000+ stall.
Chevrolet Big Block Adv. Duration: 296/308Duration @ .050": 243/255Lift: .640/.640Lobe Separation: 112 LCIncluded Lifters: 91167 Hyd. Roller3000-6600. Lopey idle, Excellent mid to top end power. 10.0:1+ CR, 3200+ stall.
Chevrolet Big Block Adv. Duration: 296/308Duration @ .050": 243/255Lift: .640/.640Lobe Separation: 114 LCIncluded Lifters: 91167 Hyd. Roller3000-6600. Fair idle, good mid-range to top end power. Good with blower or NOS.
Chevrolet Big Block Adv. Duration: 300/308Duration @ .050": 247/255Lift: .680/.680Lobe Separation: 110 LCIncluded Lifters: 91161 Hyd. Roller3200-6600. Rough lopey idle, pro street/bracket. 3500+ stall, 10.5:1+ CR, good intake and exhaust.
Chevrolet Big Block Adv. Duration: 300/308Duration @ .050": 247/255Lift: .680/.680Lobe Separation: 112 LCIncluded Lifters: 91161 Hyd. Roller3000-6600. Rough idle, pro street/bracket. Best in larger cubic inch, broad power. 10.5:1+ CR.
Chevrolet Big Block Adv. Duration: 302/302Duration @ .050": 249/249Lift: .640/.640Lobe Separation: 110 LCIncluded Lifters: 91167 Hyd. Roller3200-6700. Rough idle, Hot Street/Bracket. Needs 10.5:1+ CR, 3500+ stall, headers & good intake.
Chevrolet Big Block Adv. Duration: 302/308Duration @ .050": 249/255Lift: .640/.640Lobe Separation: 108 LCIncluded Lifters: 91167 Hyd. Roller3200-6800. Lopey idle, Pro Street/Bracket. 10.5:1+ CR advised. Ok with 100-200 NOS.
Chevrolet Big Block Adv. Duration: 302/308Duration @ .050": 249/255Lift: .640/.640Lobe Separation: 110 LCIncluded Lifters: 91167 Hyd. Roller3200-6800. Lopey idle, Pro Street/Bracket. 10.5:1+ CR advised. Ok with NOS.
Chevrolet Big Block Adv. Duration: 302/308Duration @ .050": 249/255Lift: .640/.640Lobe Separation: 114 LCIncluded Lifters: 91167 Hyd. Roller3200-6800. Lopey idle, Pro Street/Bracket. 10.5:1+ CR advised. Ok with NOS.
Chevrolet Big Block Adv. Duration: 304/308Duration @ .050": 251/255Lift: .612/.612Lobe Separation: 110 LCIncluded Lifters: 91167 Hyd. Roller3200-6800. Lopey idle, Pro Street/Bracket. Single plane intake, 10.5:1+ CR advised.
Chevrolet Big Block Adv. Duration: 304/308Duration @ .050": 251/255Lift: .612/.612Lobe Separation: 112 LCIncluded Lifters: 91167 Hyd. Roller3200-6800. Lopey idle, broad power band. Single plane intake, 10.5:1+ CR advised.