72 RWHP increase...what's it worth in 1/4

[Silverpony2000]

I am getting confused here. I added 72rwhp and 50rwt with my Novi 1k. Can't get to the track for quite some time so was messing with the ET Calculators on the net. When I put in my new numbers it shows an ET of 12.9. I was running a 13.20 CONSISTANTLY when N/A. Thats only .3 drop in et. What should I realistacaly expect as far a drop in et. I was expecting at least .5 and hoping for .7 I want my 12.5-12.7:cry: I am only putting 315/335 to the wheels but I think that some hp is being eaten up by my 2800 P.I. Stall Converter(?). N/A= 243/288 ET of 13.20@102 with 1.81 sixty. Car weighs 3440 (before blower). Any input would be great. Thanks.

[MikeyMustang]

Figure ABOUT .7 aprox .1 per 10 hp

[PRCMUSTANG]

Every 100hp is 1 second off your et and every 100 pounds is about a tenth.