Before I ask this I will say that ,yes,I do understand that every combination is different and nobody can say for sure what kind of numbers a certain car will run,especially without dyno numbers..but I just wanted your guys' opinion on how much potential for improvement I have.Here is what I have: Sorry this is so long..just wanted to give all the info.
3050 lb 70 Nova,back halved with 12 pt cage,32 x 14 goodyears,ladder bars and coil overs with a 5.14 gear.Trans is a 1.76 powerglide with a brake and 8" converter. Engine is 13.0 to1 540. RIGHT NOW it has bone stock 074 Factory aluminum heads.(I will have new heads before next season) Victor 454-R with a stock 8896 1050 dominator. The camshaft is a crane solid roller .part number 138361. Grind number R-274/4334-25-14 SFO.
lift is .737/.726
dur@ .050 is 274/284
LSA is 114 and the cam was installed @ 109 intake centerline. I have only made 4 passes on it so far.1st pass it went a 6.35 @ 108 mph with a 1.4 60'.. .Shifted it at 6800 but it felt like it ran out of steam a little ... it was 97 deg outside and miserable humid. The next week I lowered the air psi in the tires and it ran a 1.32 60' .I also shifted it @ 6400 to see how it did. This felt too early,but it ran a 6.28 but 0nly 104 mph( as I said it was 108 with the slower E.T. ) It cut out a little just as I shifted it..Upon inspecting it I found I had a broken valve spring..The springs were suposed to work with this cam..according to my local machine shop guy who checked them for me( they were nearly new but had been set up to a cam slightly smaller)They were manley 1.640. I made sure they did not stack up completely but I don't know what psi they checked at.The only reason I didn't have the eaxact springs for my cam is I knew I was going to get new heads over the winter.I only used the 074 because I had them and wanted to try out the car before winter. I haven't decided which heads I will buy yet..probably AFR 325 .Money issues will probably mandate an OUT OF THE BOX type head with no porting work..at least for now
Anyway now for my question:
Is an e.t in the 5.90's a reasonable goal for this combination with better heads? Again sorry for writing a book.
