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Old 11-28-2017, 08:26 PM   #1
P259nova
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Default 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.
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Old 11-28-2017, 08:53 PM   #2
PJ305
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Default 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!
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Old 11-28-2017, 09:30 PM   #3
P259nova
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Default Re: O/SA questions

The rating I have found was 155hp on mine
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Old 11-28-2017, 09:46 PM   #4
PJ305
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Default 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!
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Old 11-28-2017, 09:58 PM   #5
P259nova
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Default 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
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Old 11-29-2017, 04:12 AM   #6
GTX JOHN
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Default 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
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Last edited by GTX JOHN; 11-29-2017 at 04:15 AM.
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Old 11-29-2017, 06:43 AM   #7
P259nova
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Default Re: O/SA questions

It's really starting to look like I'm going to have to belly up to the bar and run I or j.
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Old 11-29-2017, 06:57 AM   #8
Billy Nees
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Default Re: O/SA questions

Ya know, this is "one of those" combos that should be getting more help from NHRA. The comparisons have been made to the 70 combo and the 75 combo should be rated less. But that being said, the 75 combo should be able to easily go under the index and if P259 is your number then you're in Div. 2? Unless you're planning on going to Indy, then I wouldn't be worried about heads-up runs in O.
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Old 11-29-2017, 07:36 AM   #9
PJ305
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Default Re: O/SA questions

I agree with Billy, if you are indeed from D-2 O/SA would be a good place to hide! D-2 is loaded with killer fast H-I-J cars. Good luck and enjoy yourself.
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Old 11-29-2017, 08:04 AM   #10
P259nova
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Default Re: O/SA questions

P259 is my track number I'm d5 bandimere. To be honest I'm looking at doing our stock super stock combo and some divisional stuff as of now no mationals. Btw just filed for my NHRA comp number yesterday.
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