hi everybody,
ý have got 67 mustang with 3.60 rear gear.A-1 made 2500 stall converter, gm th-350 auto trans.car weight 3222pound +200pound driver=3422pound.
the engine spects:ford 351w bored 0.040,victor jr intake #edl-2981,tfs heads #tfs-51400002,10.5:1 comp ratio flat top ross custom made forged aluminum pistons for use with 250hp nos,headman headers,x-pipe,flow masters,compcams mechanic roller camshaft kit #35-771-8,dui hýgh voltage electronic ignition,speed pro rings,federal mogul bearings,roller rockers,200hp nos cheater,standart block,crank & rods with arp bolt,holley street mechanic fuel pump...
note:ý cant take & find more than 92 octan fuel
first ý drove my car with my old 750cfm holley #hly-0-4779c.it gone 12.7sec 114mph with 245/45/17 kumho's and 100-150 meters slip
.after 1-2 weeks later ý have got some problems with my carb.it start to made back fires,idle stop and lastly it burned because of back fires.then we put my friends 800cfm carb #hly-0-4780c#,it didnt work properly in idle and some times made back fires because he made some things in it by himself.then we took it off.
lastly we put a #hly-0-80509-1# hp series 830cfm carb today and we solve all the problems with this carb. but ý think 830cfm is get too much for engine.note: redline 6600-6800rpm
Q:which type of holley carb would you prefer to me.hp series or ?
Q:vacuum or mechanical secondaries?
Q:how much cfm get enough?
" ý m thinking 750cfm hp series mechanical secondaries carb #hly-0-80528-1"
please help me!!!!!!! ý m going to get crazy
))
special thanks.
atay/turkey-istanbul