67 rack and pinion

[57sailplane]

hi i am knew to this site, but what i have already read is awsome. first i own a 1967 chevy short box step side. I am building it to drag race with roll cage from chasis works. I am trying to get it as low and light as posible without using air bags. i already started with 3 inch drop lower a frame from djm and found these to be heavy unfortanatly. i am also wanting to use a 2.5 inch drop spindle set up from mcgaughys classic chevy. I want to use moroso springs which they can set at any ride height with right figures.
question: is there any problem that you guys know using both the drop a frame and the drop spindle.
also after reading these threads i see it is posible to notch crossmember 2"s. do you guys see any problems i may run into with this as part of the comination.
and finaly can anybody tell me which rack and pinion works best to convert to my truck. mustang, firebird,pinto etc...
thanks with any help

[Bowtie67]

I would recamend not using the stock setup, but use an aftermarket for dropping weight, I dropped well over a 100lbs switching to a weld in crossmember, there are bolt ins from Fatman, TCI, JimMeyerRacing, with these setups you wont have to cut frame and you can use coil over versus airbags, with lowering spindles and different length coilovers you can get the frontend down pretty low. I used Scotts Hotrod IFS sytem, I dont recomend them, the quality is good but it's been over 2 months and I still don't have averything. They don't return phone calls or emails. JMO