need help car wont operrate underload
i bought a ae71 on friday i drove it around a bit that night and very intermedatly came a miss fire
i didnt bother to much and just left it next day drove it in the morning fine still had a intermedatly miss i went put some 100 octane fuel in it
still had a miss i thought it could be spark
played around found a blocked fuel filter replace corrion in spark plugs, dizze cap and points replaced all
replaced leads and still missed got the points professionly done and still miss got back to a mates house
went to start when it was hot and didnt fire blow out fuel line
it would start but under load would miss fire
left it till this morning started when cold but when warmed up started to miss
hooked up a timing light and checked spark ran fine at idle when reved it would miss and spark didnt go through
does anyone have any advise