O/SA questions

P259nova · 11-28-2017, 10:26 PM

hi everyone sorry if im posting in the wrong spot but i was wondering if there is any 350 2bbl o/sa racers out there. im building a 1975 nova with a 350/2bbl combo. im just trying to find out what im getting myself into and if this combo is a reasonable combo to go with.

PJ305 · 11-28-2017, 10:53 PM

The 70 Nova has a larger 2bl, flat top pistons and 10 cc smaller chambers. Rated at the same 224hp so your combination would be at a distinct disadvantage!

P259nova · 11-28-2017, 11:30 PM

The rating I have found was 155hp on mine

PJ305 · 11-28-2017, 11:46 PM

155hp is the factory hp rating on the 4bbl combo, NHRA rates it at 287hp.

145hp is the factory hp rating on the 2bbl combo you are referring to but NHRA has factored it to 224hp. Sorry it is what it is and good luck with your build!

P259nova · 11-28-2017, 11:58 PM

It's I'm just trying to figure out if it's worth trying to pursue. The o car or jump to a i of j with a 4bbl

GTX JOHN · 11-29-2017, 06:12 AM

I think it would tough for any 2 Brl. combo to compete with
a Big four barrel combo like my 318 Thermoquad
@ 230HP in O/SA........Spinning 7000 RPM plus when
required!

Just my .02

11-28-2017, 10:26 PM	#1
P259nova Junior Member Join Date: Mar 2017 Posts: 12 Likes: 0 Liked 0 Times in 0 Posts	O/SA questions hi everyone sorry if im posting in the wrong spot but i was wondering if there is any 350 2bbl o/sa racers out there. im building a 1975 nova with a 350/2bbl combo. im just trying to find out what im getting myself into and if this combo is a reasonable combo to go with.

11-28-2017, 10:53 PM	#2
PJ305 Member Join Date: Jul 2007 Posts: 137 Likes: 0 Liked 5 Times in 4 Posts	Re: O/SA questions The 70 Nova has a larger 2bl, flat top pistons and 10 cc smaller chambers. Rated at the same 224hp so your combination would be at a distinct disadvantage!

11-28-2017, 11:30 PM	#3
P259nova Junior Member Join Date: Mar 2017 Posts: 12 Likes: 0 Liked 0 Times in 0 Posts	Re: O/SA questions The rating I have found was 155hp on mine

11-28-2017, 11:46 PM	#4
PJ305 Member Join Date: Jul 2007 Posts: 137 Likes: 0 Liked 5 Times in 4 Posts	Re: O/SA questions 155hp is the factory hp rating on the 4bbl combo, NHRA rates it at 287hp. 145hp is the factory hp rating on the 2bbl combo you are referring to but NHRA has factored it to 224hp. Sorry it is what it is and good luck with your build!

11-28-2017, 11:58 PM	#5
P259nova Junior Member Join Date: Mar 2017 Posts: 12 Likes: 0 Liked 0 Times in 0 Posts	Re: O/SA questions It's I'm just trying to figure out if it's worth trying to pursue. The o car or jump to a i of j with a 4bbl

11-29-2017, 06:12 AM	#6
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,528 Likes: 2,220 Liked 1,791 Times in 571 Posts	Re: O/SA questions I think it would tough for any 2 Brl. combo to compete with a Big four barrel combo like my 318 Thermoquad @ 230HP in O/SA........Spinning 7000 RPM plus when required! Just my .02 __________________ John Irving 741 Stock 741 Super Stock Last edited by GTX JOHN; 11-29-2017 at 06:15 AM.

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