Can someone double check some final comp numbers - Moparts Forums

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Re: Can someone double check some final comp numbers [Re: n20mstr] #2619059 02/09/19 02:30 PM 02/09/19 02:30 PM
Joined: Feb 2005 Posts: 20,164 PA. pittsburghracer OP "Little"John
pittsburghracer OP "Little"John Joined: Feb 2005 Posts: 20,164 PA.	Originally Posted By n20mstr What cam is in it ? I ask because a nitrous grind that opens the exh really early, would benefit from more compression. Also how much nitrous are you going to use ? Depending on the cam, it might want 13 or more. You know what your doing with an engine, so you'll learn through testing . Also are the chambers softened on your heads ? Its a cam Motion cam 833 lift intake 765 ex. 286 in. 304 ex. 114 lobe center in at 110 I.S. lists my Sledgehammer plate at 150-600+ chambers are not softened as I wasn't sure how to do it PROPERLY. I have another set of B1 heads with smaller chamber and Titanium valves but I have to port them yet so that's a long way off. I don't expect to be a top runner on my budget and will mostly be racing my bracket car. I just wanted to see what I could do but I'm getting old real fast. Heck putting the engine and transmission in by myself wore me out. LOL. the engine plate will be on and off several times yet to get the headers on and find out where I want to weld on the O2 bungs. Untitled by John Cadamore, on Flickr Untitled by John Cadamore, on Flickr Untitled by John Cadamore, on Flickr 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: Can someone double check some final comp numbers [Re: pittsburghracer] #2619185 02/09/19 08:52 PM 02/09/19 08:52 PM
Joined: Aug 2003 Posts: 4,673 On the parachute mount N n20mstr master
n20mstr master N Joined: Aug 2003 Posts: 4,673 On the parachute mount	Looks really good, best advice I can give you...go real conservative on the timing, and I mean real conservative. If you start at 300hp, I'd be in single digit timing with those heads. Like 9 or 8* if consulting with inductionnsolutions on the timing, make sure you tell them the heads are not softened. Good luck ....BAD A$$ STREET CAR.....

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