How much hp did I pick up?

[427belair]

Old combo for my 555 bbc made 780@6800
13.5 compression
286/294@.050.724/.714 110
out of the box dart pro 1 345's
otb dart 4500 intake
1190 cfm carb

New combo for my 555
13.5 comp
281/296@.050 .824/.800
CFM ported pro 1's flow around 420@.800 114cl
Ported super victor
1190 carb

What kind of power do you think I will make now? Thanks Jason

[supernova]

Hi Jason,
I bet it'll be close to 900hp if the conditions are right.

[427belair]

I dont think it will make that much, but boy would it be nice. I would be really happy if it made an honest 850.
I guess Ill make up the rest with my new plate system

[sc racing]

Im with Supernova on this one with the ported intake and cam profile matched to your heads I can see around an extra 100 or so especially if the old set up was "off" a little. Average hp gain across the rpm range is the most important thing not peak hp.

[427belair]

Fwiw, my old cam didnt take advantage of the non ported heads potential, and I talked to about 10 engine builders/ head and intake porters and none of them had anything nice to say about the dart intake .
Having my engine re dyno'd isnt in the budget so I guess Ill have to wait till May and see what it does at the track. Jason

[sunsation540]

that deal should be good for 900 + or- 20 look for about 2 tenths increase,, have fun..but let us know.

[Hitchcock]

Fwiw, my old cam didnt take advantage of the non ported heads potential, and I talked to about 10 engine builders/ head and intake porters and none of them had anything nice to say about the dart intake .
Having my engine re dyno'd isnt in the budget so I guess Ill have to wait till May and see what it does at the track. Jason

Wow, may is a long way's away. It would kill me to have to wait that long to find out. As far as power, what are the specs on your heads before and after. Lots of guys with really serious standard type heads and single carbs are 900-1000. I think you will be qutie a bit faster. Good luck, and if you get bored K. I. Dragway opens the 20 th. here.

[427belair]

I dont have the specs as of right now, Im just going off what CFM performance told me to expect. Mike said my heads would be done this week so we will see.
I started installing a USED cam yesterday and noticed a nice big gouge that I didnt see before, it sucks to learn a $200 lesson when your on a tight budget. Im going to call Bullet cams tomorrow and get one coming. I had called almost every cam company before and liked the tech support Bullet offered.
My car probebly wont be ready till late april so its ok about the may start. Here in Montana we normaly dont start the race season untill mid june. Also Im doing these upgrades instead of going racing out of state this year.

[427belair]

[quote="427belair"]I dont have the specs as of right now, Im just going off what CFM performance told me to expect. Mike said my heads would be done this week so we will see.
I started installing a USED cam yesterday and noticed a nice big gouge that I didnt see before, it sucks to learn a $200 lesson when your on a tight budget. Im going to call Bullet cams tomorrow and get one coming. I had called almost every cam company before and liked the tech support Bullet offered.
My car probebly wont be ready till late april so its ok about the may start. Here in Montana we normaly dont start the race season untill mid june. Also Im doing these upgrades instead of going racing out of state this year, but I am going to try go to the bracket finals because they are in Misson, BC and the track is below sea level compared all the tracks here are over 4000' above.