Rating the Intakes for Performance on a 340 or 360.
Make--------------------------------------------------Port Size--------Carb Height------Weight______Design
Edelbrock Performer #2176 ................................ .97" x 1.95" ........... 4.63" ......... 21.2 lbs. ...... Dual-Plane
Weiand Action-Plus #8007................................. 1.00" x 1.96" ........... 5.41" ......... 23.2 lbs. ...... Dual-Plane
Weiand #7510....................................................
Edelbrock #LD-4B............................................... 1.05" x 1.95" ........... 4.90" ........ 22.5 lbs. ...... Dual-Plane
Edelbrock Torker 340......................................... 1.00" x 2.10" ............ 5.25" ........ 22.0 lbs.
'1970' 340 'Stock' Cast Iron #3462848.............. 1.07" x 2.15" ............. 5.35" ....... 51.0 lbs. ...... Dual-Plane
'1968/1969' 340 'Stock' Cast Iron #2531915.... 1.07" x 2.15" ............. 5.35" ....... 51.0 lbs. ...... Dual-Plane
'1971' 340 'Stock' Cast Iron #3512100............. 1.07" x 2.15" .............. 5.35" ....... 49.5 lbs. ...... Dual-Plane
Weiand Stealth #8022....................................... 1.00" x 1.96" .............. 5.51" ....... 22.2 lbs. ..... Dual-Plane
Weiand X-Celerator #7510-X.............................
Holley Street Dominator #300-7....................... 1.02" x 2.08"................ 5.25" ....... 21.3 lbs.
Edelbrock Torker II #5076................................ .98" x 2.16" ................. 5.72" ....... 19.2 lbs.
Weiand #7507........................................................................................ 5.35"............................. Dual-Plane
Offenhauser 360* Equa-Flow ........................................................................................................ Dual-Plane
Offenhauser 360* Dual-Port #6006.................. 1.10" x 1.18" {Upper}... 5.20" ....... 22.0 lbs. ...... Dual-Plane
......................................................................... 1.10" x 0.75" {Lower}
Mopar Performance #4876335.......................... 1.07" x 2.15" ................5.25" ........ 19.6 lbs. ..... Dual-Plane
Edelbrock #LD-340............................................ 1.07" x 2.16" ............... 5.30" ........ 23.1 lbs. ..... Dual-Plane
Edelbrock Performer RPM #7176...................... 1.01" x 2.17" ............... 5.35".......... 21.0 lbs. .... Dual-Plane
Weiand X-Celerator #7545............................... 1.10" x 2.08" ............... 5.07" ......... 22.0 lbs.
Weiand X-Terminator.......................................
Edelbrock Performer Air-Gap #7576................. 0.98" x 2.16" ............... 5.35" ......... 22.6 lbs. ..... Dual-Plane
Edelbrock Tarantula #TM-5............................... 1.08" x 2.17" .............. 5.73" .......... 21.0 lbs.
Holley Strip Dominator #300-8......................... 1.12" x 2.15" .............. 5.50" ..........23.0 lbs.
Offenhauser Port-O-Sonic #6073...................... 1.10" x 2.17"
Edelbrock Victor #2915..................................... 1.12" x 2.17" ............. 4.93" ........... 21.2 lbs.
Mopar Performance M-1 #4876334 ....................................................... 5.56"........... 20.7 lbs.
Edelbrock Super Victor #2815........................... 1.21" x 2.15" ............. 6.30" ........... 21.5 lbs.